Home / 54,345.24-81,517.91-43,765.65

Finding the Fourth Proportional to 54,345.24, 81,517.91 and 43,765.65

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Solution

The fourth proportional to 54,345.24, 81,517.91 and 43,765.65 is: 65,648.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,345.24 : 81,517.91 = 43,765.65 : x
  2. Step 2: Convert to fraction form
    54,345.24/81,517.91 = 43,765.65/x
  3. Step 3: Cross multiply
    54,345.24x = 81,517.91 × 43,765.65
  4. Step 4: Simplify right side
    54,345.24x = 3,567,684,098.96
  5. Step 5: Solve for x
    x = 3,567,684,098.96/54,345.24
  6. Step 6: Final answer
    x = 65,648.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.